@article{SMJ2_2002_28_3_a3,
     author = {Nenov, Nedyalko},
     title = {On a {Class} of {Vertex} {Folkman} {Numbers}},
     journal = {Serdica Mathematical Journal},
     pages = {219--232},
     publisher = {mathdoc},
     volume = {28},
     number = {3},
     year = {2002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SMJ2_2002_28_3_a3/}
}